ecofactbook
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species
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Animalia
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Arthropoda
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Trilobita
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Ptychopariida
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Elviniidae
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Drumaspis
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Drumaspis alberta
Drumaspis briscoensis
Drumaspis clara
Drumaspis deckeri
Drumaspis goodsirensis
Drumaspis idahoensis
Drumaspis nitida
Drumaspis osella
Drumaspis sabinensis
Drumaspis sabulosa
Drumaspis tanycodia
Drumaspis texana
Drumaspis utahensis
Drumaspis wichitaensis
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Drumaspis alberta